JP2002242305A - L-shaped washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide metallic material, enabling re-clamping and enabling the execution of works, which will not be subjected to the effects of the shrinkage of wood, although play due to the drying shrinkage of wood is generated in the nut section of a strap bolt clamping the joining section of the framework structural material of a wooden house but re-clamping is impossible in the structure of a building and the mechanism of the strap bolt, and to contribute to the construction of an excellent house resisting a disaster. SOLUTION: Since a clamping nut section is positioned under an exterior wall material on the outside of the building as the defect of the strap bolt, an L-shaped washer is devised as a method, in which the clamping nut section can be positioned in the building. The problem can be solved by the L-shaped washer for a mechanism, in which the washer unified with the fixing force of the bolt fixed to wood in the vertical direction is erected in an L shape and a screw-nut section for the bolt pulling wood in the horizontal direction is inserted and clamped to the erected section, because the wood in the vertical direction and wood in the horizontal direction are combined and joined into an L-shaped or a T-shaped joining section of structural wood. When a screw bolt is used as the pulling bolt, the effect from shrinkage of wood is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an L-shaped joint or a T-shaped joint of a structural member of a wooden building.

[0002]

2. Description of the Related Art Heretofore, joints of structural members of a wooden building which intersect in an L-shape or a T-shape have been fastened with a blade-shaped blade bolt. The leaf plate bolt is formed with the other end of the screw portion of the single screw bolt in a leaf plate shape, a bolt penetration hole is provided in the blade plate surface, and the bolt is fastened to the side of the wood and fixed.
This is a pulling hardware configured to penetrate wood to be joined in a L-shape or T-shape with one screw part and tighten the nut from the outside.

[0003]

A drawback of the blade bolt is that the screw portion to be tightened with the nut is hardware used in a form located outside the building, so that it cannot be re-tightened after the outer wall is constructed. It is in. Structural timber for wooden buildings is generally used under insufficient drying conditions in the current situation, and since the drying of wood proceeds after construction, the nuts of bolts tightened during construction shrink due to drying of the wood. The loss of play (3% to 5%) occurs, which causes distortion of the building and greatly affects the strength of the building.
It is a major weak point against rolling due to an earthquake or typhoon. Therefore, retightening is required. However, as described above, the blade bolt cannot be retightened after the outer wall is constructed. The present invention has been made to solve these disadvantages.

[0004]

Means for Solving the Problems A sheet metal having an arbitrary thickness is determined to have an arbitrary width and length to form a strip-shaped sheet metal piece, and is bent at 90 degrees at an arbitrary point to stand on a plane (1). Surface (2)
A bolt hole (3) is provided at an arbitrary point on the plane (1) to form a L-shape made of
A bolt hole (4) is provided at an arbitrary point on the upright surface (2), and the wood to be cross-joined in the horizontal direction is pulled and tightened with the bolt (7). At this time, the screw nut portion of the bolt (7) Is located on the side of the bolt hole (4) of the L-shaped upright surface (2), that is, inside the outer peripheral member of the structural material of the building, so that tightening is possible even after the outer wall is constructed. The L-shaped bent portion is made of a thickness or a rib having a strength capable of withstanding the tensile force of the bolt (7) and maintaining 90 degrees. Arbitrary protrusions (5) are provided around the back surface of the bolt hole (3) in the plane (1), and the bolts (6) can be engaged with the tightened wood to increase the fixing force of the L-shaped washer. The problem is solved by the L-shaped washer having the above configuration.

[0005]

Embodiments of the present invention will be described below. Optional thickness (Housing Finance Corporation specification washer 4mm
Above), a sheet of arbitrary width 6 cm and length 14 cm
It is a strip-shaped sheet metal piece of a predetermined size, and a width of 6 cm is 1 at both ends.
A rib is formed by making a rib by raising each cm, and a bolt hole (3) and a bolt hole (4) of about 14Φ are provided at points of 2 cm from both ends of a length of 14 cm, and one end is 4 cm.
Bend about 90 degrees to stand up, plane (1) and upright surface (2)
And an L-shaped washer is formed. Also, the back side of the bolt hole (3),
A claw-shaped projection is provided around the hole (3) on the lower surface of the U-shape. When the present invention uses this in the above structure,
It is used as a hardware to bind the structural material combination joint at the time of assembling the structural members of the wooden house, that is, at the time of the ridge raising work. It is used interchangeably. The L-shaped washer according to the present invention is fixed to the timber in the vertical direction as a washer of the bolt (6) at the joint of the L-shaped or T-shaped wood, and the washer is extended to stand at 90 degrees. Then, a bolt hole (4) is provided to insert a screw portion of a bolt (7) penetrating from the outside of the timber to be joined in the lateral direction (the side outside the building where the plate material of the outer wall is attached). The upright surface (2) and the transversely cross-joined wood, which are to be tightened and tightened, are applied with a sufficient space as a pull-out for the bolt (7). If a projection (5) is provided on the back side of the penetration hole (3) of (6) and tightened with a bolt (6), the projection is brought into close contact with the wood and becomes the fixing force of the L-shaped washer, and the tensile stress of the bolt (7) It is a tie of the structure that can increase the. The L-shaped washer having the above-described structure and configuration can be re-tightened because the fastening nut portion is a place where the inside of the building can enter the ceiling or the attic. Further, by using a coach screw bolt (8), which is not affected by the loss of wood, as the pulling bolt (7), it is possible to firmly tie even places that cannot be entered. If the co-screw bolt (9) is used, retrofitting is possible, and it is an attachment tie and an L-shaped washer that can be attached even when remodeling or renovating an existing building.

[0006]

According to the present invention, there are provided three fasteners per tsubo of a building (30 mils in total).
(90 tsubo in a house in Tsubo) and many bolts are used, but because the screw and nut fastening part is on the outer wall side of the building, holes could not be drilled in the outer wall in consideration of leakage and re-tightening was not possible. In addition to solving the problem, it is also possible to provide a construction method that can use coach screw bolts that are not affected by drying shrinkage of wood. It can be applied during replacement and renovation to strengthen the building. The structure is as simple as forming the conventional washer to be long and formed into an L-shape, and can be provided at a low cost. It is an invention that can contribute to making a high-quality building that is strong against disasters.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a perspective view of a modification of the present invention.

FIG. 3 is a perspective view showing the application of the present invention.

FIG. 4 is a perspective view of a modified application of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheet metal flat surface 2 Sheet metal rising surface 3 Bolt penetration hole 4 Bolt penetration hole 5 Projection 6 Fixing bolt 7 Pull bolt 8 Coat screw-pull bolt 9 Coat screw-fix bolt

Claims (2)

[Claims] 1. A sheet metal (1) having an arbitrary thickness and an arbitrary width and length is bent at an arbitrary point by 90 degrees, and is bent from a plane (1) of the sheet metal and an upright surface (2). Formed into an L-shape
An L-shaped washer having a bolt hole (3) at an arbitrary point on a plane (1) and a bolt hole (4) at an arbitrary point on an upright surface (2). 2. The L according to claim 1, wherein a projection (5) is provided around a hole on the back surface of the bolt hole (3) in the plane (1) of the sheet metal.
Mold washer.